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Finding the Fourth Proportional to 15,009.57, 20,713.23 and 9,041.49

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Solution

The fourth proportional to 15,009.57, 20,713.23 and 9,041.49 is: 12,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.57 : 20,713.23 = 9,041.49 : x
  2. Step 2: Convert to fraction form
    15,009.57/20,713.23 = 9,041.49/x
  3. Step 3: Cross multiply
    15,009.57x = 20,713.23 × 9,041.49
  4. Step 4: Simplify right side
    15,009.57x = 187,278,461.91
  5. Step 5: Solve for x
    x = 187,278,461.91/15,009.57
  6. Step 6: Final answer
    x = 12,477.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.